REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. ================================================================================ UBSAN: array-index-out-of-bounds in fs/reiserfs/item_ops.c:485:21 index 1 is out of range for type '__u16 [1]' CPU: 1 PID: 12151 Comm: syz-executor.1 Not tainted 6.5.0-rc7-syzkaller-g706a74159504 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x125/0x1b0 lib/dump_stack.c:106 ubsan_epilogue lib/ubsan.c:217 [inline] __ubsan_handle_out_of_bounds+0x111/0x150 lib/ubsan.c:348 direntry_create_vi+0x94d/0xa40 fs/reiserfs/item_ops.c:485 create_virtual_node+0x73d/0x1a40 fs/reiserfs/fix_node.c:115 ip_check_balance fs/reiserfs/fix_node.c:1412 [inline] check_balance fs/reiserfs/fix_node.c:2083 [inline] fix_nodes+0x4166/0x8a80 fs/reiserfs/fix_node.c:2635 reiserfs_insert_item+0x6ef/0xe20 fs/reiserfs/stree.c:2238 indirect2direct+0x6d8/0xa20 fs/reiserfs/tail_conversion.c:283 maybe_indirect_to_direct fs/reiserfs/stree.c:1585 [inline] reiserfs_cut_from_item+0xa81/0x1a00 fs/reiserfs/stree.c:1692 reiserfs_do_truncate+0x672/0x10b0 fs/reiserfs/stree.c:1971 reiserfs_truncate_file+0x1c2/0x1070 fs/reiserfs/inode.c:2308 reiserfs_setattr+0x9c3/0x12a0 fs/reiserfs/inode.c:3394 notify_change+0x670/0x1160 fs/attr.c:483 do_truncate+0x15c/0x220 fs/open.c:66 do_sys_ftruncate+0x6a2/0x790 fs/open.c:194 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fb21307cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fb213d3c0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000004d RAX: ffffffffffffffda RBX: 00007fb21319bf80 RCX: 00007fb21307cae9 RDX: 0000000000000000 RSI: 0000000000000f88 RDI: 0000000000000004 RBP: 00007fb2130c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fb21319bf80 R15: 00007ffc4a4ef588 ================================================================================